1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
// General JS utilities
function safeQuote(x) {
return x.replace(/"/g, '\\"')
.replace(/'/g, "\\'");
}
function dump(item) {
var CHUNK = 500;
function lineify(text) {
var ret = '';
while (text.length > 0) {
if (text.length < CHUNK) {
ret += text;
return ret;
}
var subText = text.substring(CHUNK-20, CHUNK);
var index = CHUNK-19+Math.max(subText.indexOf(','), subText.indexOf(']'), subText.indexOf('}'), 21);
ret += text.substr(0,index) + '\n';
text = '// ' + text.substr(index);
}
}
try {
return lineify(JSON.stringify(item));
} catch(e) {
var ret = [];
for (var i in item) {
var j = item[i];
if (typeof j === 'string' || typeof j === 'number') {
ret.push(i + ': ' + j);
} else {
ret.push(i + ': [?]');
}
}
return lineify(ret.join(', '));
}
}
function dumpKeys(item) {
var ret = [];
for (var i in item) {
var j = item[i];
if (typeof j === 'string' || typeof j === 'number') {
ret.push(i + ': ' + j);
} else {
ret.push(i + ': [?]');
}
}
return ret.join(', ');
}
function assertEq(a, b) {
if (a !== b) {
print("Stack: " + new Error().stack);
throw "Should have been equal: " + a + " : " + b;
}
}
function assertTrue(a) {
assertEq(!!a, true);
}
assert = assertTrue;
function dedup(items, ident) {
var seen = {};
if (ident) {
return items.filter(function(item) {
if (seen[item[ident]]) return false;
seen[item[ident]] = true;
return true;
});
} else {
return items.filter(function(item) {
if (seen[item]) return false;
seen[item] = true;
return true;
});
}
}
function range(size) {
var ret = [];
for (var i = 0; i < size; i++) ret.push(i);
return ret;
}
function zeros(size) {
var ret = [];
for (var i = 0; i < size; i++) ret.push(0);
return ret;
}
function searchable() {
if (typeof arguments[0] === 'object') arguments = arguments[0];
var ret = {};
for (var i = 0; i < arguments.length; i++) {
ret[arguments[i]] = 0;
}
return ret;
}
function walkJSON(item, func) {
if (item.length) {
for (var x = 0; x < item.length; x++) {
var y = item[x];
if (y && typeof y === 'object') {
walkJSON(y, func);
}
}
} else {
func(item);
for (x in item) {
var y = item[x];
if (y && typeof y === 'object') {
walkJSON(y, func);
}
}
}
}
function keys(x) {
var ret = [];
for (a in x) ret.push(a);
return ret;
}
function values(x) {
var ret = [];
for (a in x) ret.push(x[a]);
return ret;
}
function bind(self, func) {
return function() {
func.apply(self, arguments);
}
}
function sum(x) {
return x.reduce(function(a,b) { return a+b }, 0);
}
function sumTruthy(x) {
return x.reduce(function(a,b) { return (!!a)+(!!b) }, 0);
}
function loopOn(array, func) {
for (var i = 0; i < array.length; i++) {
func(i, array[i]);
}
}
// Splits out items that pass filter. Returns also the original sans the filtered
function splitter(array, filter) {
var splitOut = array.filter(filter);
var leftIn = array.filter(function(x) { return !filter(x) });
return { leftIn: leftIn, splitOut: splitOut };
}
function dcheck(tag) {
return DEBUG_TAGS_SHOWING.indexOf(arguments[0]) != -1;
}
DPRINT_INDENT = '';
function dprint_indent() {
DPRINT_INDENT += ' ';
}
function dprint_unindent() {
DPRINT_INDENT = DPRINT_INDENT.substr(3);
}
function dprint() {
var text;
if (arguments[1]) {
if (!dcheck(arguments[0])) return;
text = arguments[1];
} else {
text = arguments[0];
}
if (typeof text === 'function') {
text = text(); // Allows deferred calculation, so dprints don't slow us down when not needed
}
text = DPRINT_INDENT + '// ' + text;
print(text);
}
PROF_ORIGIN = Date.now();
PROF_TIME = PROF_ORIGIN;
function PROF(pass) {
if (!pass) {
dprint("Profiling: " + ((Date.now() - PROF_TIME)/1000) + ' seconds, total: ' + ((Date.now() - PROF_ORIGIN)/1000));
}
PROF_TIME = Date.now();
}
// Usage: arrayOfArrays.reduce(concatenator, []);
function concatenator(x, y) {
return x.concat(y);
}
function mergeInto(obj, other) {
for (i in other) {
obj[i] = other[i];
}
return obj;
}
// Sets
set = searchable; // Create a 'set'
function setSub(x, y) {
var ret = set(values(x));
for (yy in y) {
if (yy in ret) {
delete ret.yy;
}
}
return ret;
}
// Intersection of 2 sets. Faster if |xx| << |yy|
function setIntersect(x, y) {
var ret = {};
for (xx in x) {
if (xx in y) {
ret[xx] = true;
}
}
return ret;
}
function isNumber(x) {
return x == parseFloat(x);
}
|
